Internal Environmental Protection Agency (EPA) emails show extensive collaboration between top agency officials and leading environmentalist groups, including overt efforts to coordinate messaging and pressure the fossil fuel industry.

The emails, obtained by the Energy and Environment Legal Institute (EELI) through a Freedom of Information Act lawsuit, could fuel an ongoing controversy over EPA policies that critics say are biased against traditional sources of energy.

Emails show EPA used official events to help environmentalist groups gather signatures for petitions on agency rulemaking, incorporated advance copies of letters drafted by those groups into official statements, and worked with environmentalists to publicly pressure executives of at least one energy company.